If you haven't played Alien Frontiers yet, it's one of the slew of dice-Euros that have come out in the last couple of years. It's got a science fiction theme, and is a sort of worker placement/area-control. It uses dice, but in a pretty neat way—you use them to get resources, build ships, build settlements, and so forth. My biggest problem is that the end-game is swingy and prone to bang-on-the-leader. There's an expansion out, and it may have fixed my concerns (I haven't played it yet).But the point of this post is that it's available on the iPad now for $4.99—which is WAY cheaper that the actual board game.